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Za fosilními dřevy do ománské pouště

Fossil plant stems from Omani desert. Permian fossil plant stems in Sultanate of Oman occur in desert areas. Formerly embedded in sandstones, now they are deflated by the air and accessible on the desert floor. They are unique for their permineralization by Fe oxides/hydroxides, SiO2, sometimes with an admixture of moganite, a metastable form of SiO2. The fossils probably prove semi-arid middle Pe…